import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 86185
 * Date: 2023-10-16
 * Time: 15:30
 */
@WebServlet("/index")
public class IndexServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        HttpSession session = req.getSession(false);
        if (session == null) {
            resp.setContentType("text/html; charset=utf8");
            resp.getWriter().write("请先登录");
            return;
        }
        String username = (String) session.getAttribute("username");
        int count = (int) session.getAttribute("count");
        count += 1;
        session.setAttribute("count", count);
        System.out.println("username = " + username + " count = " + count);

        resp.setContentType("text/html; charset=utf8");
        resp.getWriter().write("欢迎, " + username + " 登录次数 : " + count);
    }
}
